A cqbposation of mary



` June 3, 1930; .Q H, ARNOLD u 1,761,555

CASH REGISTER Filed D.1'7r..-1i924- s sheets-sheet 1 FIG; 1

Charles H. Arnold June 3, 1930. C, H ARNOLD I 1,761,555

CASH REGISTER Filed Dec. 17, 1924 s sheets-sheet 2 Charles H. Arnold il atbozwuja June 3, 1930. c. H. ARNOLD CASH REGISTER 3 Sheets-Sheet 5 Filed Deo. 1'7, 1924 FIG. 8

Char es Arnold Patented June 3, 1930 PATE "l" l ICE CHARLES H. ARNOLD, OF DAYTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE NATINAL CASE REGISTER COMPNY, 0F DAYTQN, GHIO, A. CORPRATION OF MARY- LAND CASH REGISTER Application filed yDecember 17, 1924. Serial No. 756,532.

" trolling,` an actuating means by depressingr one or two keys in this row, the movement ot the actuating means being` a number ot' divisions equal to the amount represented by the one key or the combined amounts of two keysl Another object is to provide a constru^ tion whereby a single row of keys depressed in combinations of two will register monetary values of certain denominations ordinarily requiring?,l two rows of keys, such annas in indian money, and shillings in English money, as .shown in the patent to E. J. Von yPein, No. 1,073,704, issued Sept. 23, 1913.

Another object is to provide means for dif- 'erentially moving two ,printing members from a single diii'erential actuating means.

`With these and incidental objects in view, the invention consists of certain novel Jfeatures ci' construction and combinations ot parts, the essential elements of which are set nforth in appended claims and a preferred torni or embodiment of which is hereinafter described with rreference to the drawings which accompany and 'form part of this specication.

Ot said drawings:

Fig. 1 is a transverse section of the machine taken te the lett of the key bank with the new mechanism.

Fia'. Qfis a detail view of the printingwheel perating' mechanism shown in F 1.

Fie'. 3 a detailview of two printiz 5 members and their operating` c oimectmg1 Aiechanism.

Fig. 4; is a detail view et the connecting mechanism shown in Fig. 3.

Fin'. 5 top plan view of the printing wheel operating' mechanism.

Fig. 6 is a detail left side view of the key bank shown in Fig. 1, with the lower key depressed.

F ig. 7 is a detail left side View ot the key bank shown in Fig. 1, with the rst and second. keys depressed.

F ig. 8 is a diagram ot' the key arrangement.

Fig. 9 is a perspective view of the diiierential latch mechanism.

In the drawings the present improvements are shown applied to a machine of the type shown in the patents previously referred to, and to which reference may be had for a general description ot *he operation and construction of the machine. These patents describe a cash register having a plurality or" oscillating' segment gears which are controlled differentially in their movements by a plurality of depressible value keys and serve to set indicators, actuate totalizing devices, and set type wheels in the printing mechanism.

The printing mechanism is arranged to print records of transactions on a strip or" paper contained in the machine and on receipts which are issued by the machine. As before stated, one of the present improvements is a device for differentially moving two printing members from a single difierential actnatinex means.

The machine shown is adapted for Indian currency, but this is merely by way of illustration, and it may readily befemployed for currency of other countries.

The type or machines to which the present imirirovements are shown applied is old and well known, and only so much of the rer-.eral structure is shown as is necessary to properly illustrate the improvements. The machine includes a. driving shaft and suitable connections (not shown in the drawings) to an oscillating shaft (Fig. 1). The shaft 30 carries a segment 31 for each registering` unit which is latchedto and unlatched from a segment gear 32 for causing the segment gear 32 to be oscillated different extents upon the operation of the machine, as determined by the particular valuevkeys 33 which are depressed. Each segment gear 32 meshes with au intermediate gear 34., and through this fil gear transmits its differential movements to the main or cash totalizer 35. The totalizer, which is of the regular construction for this type of machine, is fully described in the patents previously referred to. The digit wheels of the totalizer are divided into a. number of divisions equal to the registering capacity ot their respective key banks, as shown in Fig. 8. During an operation of the machine the segment 31 is moved clockwise to the extent of bringing a shoulder 36 to a position to be engaged. by the shoulder 37 formed on the left hand end of a latch 38 supported by two links 39 carried by he segment gear 32. During the return, or counter-clockwise movement, of the segment 31 the segment gear 32 is moved different extents as determined by the particular value of the key depressed. A depressed value key causes the latch 38 to move toward the right a sufficient distance to disengage the shoulder 37 from the shoulder 36 and stop the segment gear while the segment 31 continues its invariable movement. When the segment gear 32 is not moving wi th the segment 31 it is held rigid by the right hand end of the latch 38, which is formed to engage a notched bar 40 secured to each frame 41, all of which is old and Well known in the art.

he usual detent 46 retains a key, when depressed, in such position during the operation of the machine. This detent is latched in operated position by a spring-pulled bar 47, the left hand end of which is bifurcated4 V to engage the shaft 30, and the right hand end of which is guided by a pin i8 mounted on the frame 11, projecting into an elongated opening in the bar. The detent 46 normally engages a shoulder 49 on the bar L17, but, as the detent is moved counter-clockwise by depressing a key, the bar is free to be moved toward the leftby its spring 50, placing the top surface 51 of the bar 4-7 under the detent, where it retains the detent in its operated position to hold a key depressed until a certain time in the operation of the machine when a cam arm 51, secured to the shaft 30, will engage a pin 52 projecting from the bar and move the bar toward the right to normal position to release the depressed key.

During an operation of. the machine the segment gear 3Q, is differentially positioned by means hereinbefore described, and is left in that position until during the clockwise movement of the segment 31 during the next operation of the machine, whereupon it is moved clockwise therewith by an arm 53 which engages the segment gear at the point Upon counter-clockwise movement of the segment 81, the segment 32 is again di iferentially positioned as above described.

K 1/board The keyboard, a diagrammatic view of which is shown in Fig. 8, is arranged for lndian currency. The Afirst bank of keys on the right has eleven keys and is used to register Pies; the second bank has eight keys and is used to register Annas, and the remaining banks each have the usual nine keys and is used. to register Rupees. The mechanism cooperating with the various key banks, excepting the second from the right having the eight keys, is of the usual construction 'for a machine of this type, and being old and well known is not shown here, as it is ifully illustrated in the patents previously referred. to.

The key bank having the eight keys is arranged to permit a registering capacity of lifteen keys. This is accomplished by depressing the 1 key together with any one of the other keys in the same bank. Heretofore a registering capacity of this value required fifteen keys arranged in two parallel rows. B this improvement one row of keys is eliminated, which permits a larger total registering capacity for the same size machine.

While there are but eight keys in this par ticular bank, the segment gear 32, or difierential mechanism, is adapted to assume a zero and fifteen operated positions controlled by the eight keys. |This is accomplished by a pivoted stop 55, carried by a latch support 62 pivoted on the segment gear 32, having two shoulders 56 and 57 (Figs. 6, 7 and 9), one or the other of which engages the end of a depressed key. The stop is controlled by the depression of one or more keys. Said keys control two sliding bars 58 and 59 mounted on pins 60 and 61 supported in the frame 4.1. When the 1 key is depressed, as shown in Fig, 6, the shoulder 57 engages the end of the key, when the segment gear 32 moves counterclockwise and causes the pivoted latch support- 62 to move clockwise on' its pivot 63 and disengage the latch 88 from the segment 31 (Fig. 1). The stop 55 is pivoted at 67 and in zero position is held in contact with a lug 68 by a spring 69. The lug 68 projects from the detent 46, and when the segment gear 82 moves counter-clockwise the stop 55 receives a slight clockwise movement from its spring 69 to position the shoulder 57 so as to engage the end of the depressed key. Then a single key of higher value than the 1 key is depressed, the shoulder 56 engages this key to stop the segment gear 82, and an amount equal to the value of the key depressed will be registered.

The latch support 69, is bifurcated to engage a pin 70 (Fig. 1) mounted in the latch 38, and through this connection the latch 36 is moved to disconnect the driving segment 31 from the segment gear 32 when the stop 55 engages a depressed key.

When the 1 key is depressed with another key of higher value, an amount equal to the sum of both keys will be registered. ferring to Fig. 7, which shows the 1 and `meneer,

2 keys depressed `to register 8, the shoulder 57 on the stop 55fengages the end 71 of the 2 key, allowing the segment gear 32 to be moved three divisions of movement. The 1 key being shorter than the other` keys, the shoulder 57 clears the end of this key when two keys are depressed, the stop not being permitted to swing von its pivot in a clockwise direction as it does when only one key is depressed.

Referring to Fig. 6, it will be seen that when the segment gear 32 is in its Zero position the stop engages the lug 68, which holds the stop in such a position that a spring-actuated pawl 7 2 can swing under the lower end of the stop, as shown in Figs. 7 and 9, when two keys are depressed, The p'awl 72, which is pivoted at 7 3 to the latch support 62, has a downwardly extending arm #i contacting an arm 77 of a yoke 75 mounted on a rod 7 6 supported in the frame 41. Another arm 7 8 of the yoke 75 contacts a roller 79 carried by a lever 80 pivoted on a stud 81. An upwardly extending arm of the lever 80 carries a roller 82 cooperating with stepped shoulders 88 and 89 of the two sliding bars 58 and 59 y(Figs. 6 and 7). VWhen there arelno keys depressed in this bank the roller 82 will engage the shoulder 88 on each bar, and if but one key is depressed the roller will engage the shoulder 88 of one bar, as shown in Fig. 6, whereby the pau/1.72 is held in such a position that the stop 5,5 can swing clock wise as thesegment gear 32 moves counterclockwise and the shoulder 57 will engage the end of the 1 key which is depressed. Should any one ofthe other keys in this bank be rdepressed instead of the 1 key, the shoulder 56 would engage the end of the key to stop the segment gear .82.

V wWhen two keys are depressed in this bank, as shownin 7, the roller 82 engages the shoulders 89 on both sliding bars 58 and 59 which has permitted `a slight counter-clockwise movement of the lever 80, with the result that the pawl 72 has been moved by its spring 90 to the extent of placing the right hand end 91 of the pawl in engagement with the rear side of the lower end of the stop 55. With the paw?. 7 .l in this position the shoulder 57 will not engage the 1 key as the segment gear moves counter-clockwise, but it will engage the other depressedkey as it is longer than `he l key, as previously described.

rvlhe sliding bars 58 and 59 are operated by the keys, bar 5,8` being operated bythe l key only, through a pin 92 carried by the key and moving. in a slot 93 formed in the bar. The other bar 59 is not affected by the 177 key but is operated by all the other keys in this bank by a pin in the keys traversing its appropriate cam slot formedin the bar, asin the bar 58 previously described. The bar o9 is normally retained in hon e position by a spring 94. The bar 58 does not need a special retaining means, as he key pin 92 is always in engagement with the slot 93.

Printer The segment gear 32, which is diilerentially positioned under the control of the keys as hereinbefore described, is adapted to difforentially adj ust two printing members which together are capable of printing numerals from 1 to 15, inclusive.

The segment gear 82 (Figs. 1, 2 and 5) is secured to a hub (Fig. 5) which has fastened on its other end a segment gear 101 meshing with a segment gear 102. The segment gear 102 is mounted on a hub 103 secured to the left hand end of one of a series of telescopic sleeves 104i. Fastened to the right hand end of this sleeve is a segment gear 105 meshing with a gear 106 which is secured to the left hand end of one of a series of teleg scopic sleeves 107 to which is fastened a type wheel 108. rlhis wheel has two groups of digits arranged in the usual way from 07 to 9, inclusive. alooperating with this wheel to print digits from 10 to 15, inclusive, is a double type segment 109 (Figs. 3 and 5) which has two groups of type characters 116 and 117, each group having a dot and the digit c17 with a dot During the time that the type wheel 108 is moved to any position between 0 and 9, the type segment 109 remains in the home position, as shown in F ig. 3, in which position the dot will irint.

As the type wheel 108 moves past the 9 position to the 0 or tenth position, the type segment 109 automatically movesv one position, which places the 1 on this segment in alinement with the 0 on the type wheel 108. Continued movement of the type wheel 108 causes the segmei t 109 to remain in the moved position so trat the numll rs from 10 to 15 inclusive may be printed by the combined wheel 108 and segment 109.

lhe segment 109 is operated by a cam race 110 formed in the side the type wheel 108. Engaging this cam race is a roller 111 carried on an arm 112 8 and 11) pivoted on a rod 113 supported in the printer frame. Also carried on the 112 on the opposite side to the roller 111,7is a vroller 114i which extends through a slot 115 in the segment 109 to `move the segment at the proper time .with the type wheel 108.

Operation A brief description of the operation of the machine will now be given. Referring to Fig. 8, the keys in each of the banks except the anna bank, which is the second bank from the right, are depressed in the usual manner well known in the art. Then the number of annas to be registered is equal to one or any even number, a key commensurate with that amount will he depressed in the anna bank.

LDU

When the number et annas is uneven, the one anna key must be depressed in combination with one of the even number anna keys. r'his combination of anna keys will control the differential latch in such a way that the diiierential mechanism (Fig. l) will be `iii/'en a movement equal to one step more than that given i'or the even niunber key alone. rlhis movement will be transmitted to the totalizer and to the printing wheel so that the amount equal to the amount oit the combination of the keys depressed will be entered into the totalizer and printed on the record material.

he machine is released and operated in any one ot the ways known in the art 'for machines ot this type.

While the forms oi' mechanism herein shown and described are admirably adapted to tullill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the forms or embodiment herein disclosed, Ytor they are susceptible of embodiment in various terms, all coming within the scope ot the claims which follow.

`What is claimed is:

1. The combination of a printing element adapted to be set in a plurality oi" positions, another printing element in adsl alinement with said first printingelement adapted to be set in a plurality ot positions, and means intermediate the said printing elements 'for settimer one printing' element to the ie pos'tion and holding said one printing element in. the said same position, said intermediate means being,` actuated and held by the other printing element whenever the said other printing element is moved into any one ot plurality ot positions.

2. The combination of a plurality ot settable printing elements in axial alinement, and means operable upon forward and reverse movement of one of said elements tor adjusting the other element to constant predetermined positions.

3. The combination of a pair of settable oscillatable printing elements in axial alinement, and means under control et one element for adjusting the other element to constant predetermined positions.

4. The combination ot a settable printing element, another settable printing element, and an arm having two lateral projections, one projecting into a slot in ne printing' element, the other projectinginto a slot in the other printing element tor adjusting one ot said elements when the other of said elements is in certain positions.

5. The combination ot a printing element adapted to be set to a plurality ot positions, another printing element in axial alinement with said iirst printing' element adapted to be set in one ot' two positions, and means intermediate sai-d elements and adjusted by the first-mentioned element tor moving the last mentioned element into either of the two positions, said means adapted to be held in the adjusted position by the tiret-mentioned element to maintain the second-mentioned element in its adjusted position.

tl. In a machine ot the class described, the combination oit a plurality oil' keys arranged in a single group, a detent plate adapted to be operated by one ott said keys, a second detent plate adapted to be operated by the other keys ot said group, said detent plates being arranged to permit the simultaneous depression oit the iirst mentioned key and any one ot the other keys, a di llerential member' controlled by all oit said keys, a latch device mounted on said differential member, a movable member included in said latch device, a. plurality of shoulders on said movable member adapted to engage one ot said depressed keys to control the movement oit said differential member, means lor retaining,- said shouldered member in either one cgt two positions to cause a certain shoulder to engage said keys, and means controlled by said detents for controlling retaining means.

7. ln a machine ot the class described, the combination ot a plurality of keys arranged in a single group, a detent plate adapted to be operated. by one oit said keys, a second detent plate adapted to be operated by the other keys ot said group, said detent plates being arranged to permit the simultaneous depression ot the iirst mentioned key and any one oit the other keys, a differential member controlled by all of said keys, a latch device mounted on said differential member, a movable member included in said latch device having),` a plurality of shoulders adapted to engage one ot said depressed keys to control the movement ot said differential member, means for retaining said shouldered member in either one of two positions to cause certain shoulders to engage said keys, means controlled by said detents Ytor controlling said retainin,0r means, and a totalizer adapted to be operated by said differential member to have accumulated therein an amount equal to the value oil any one key and an amount equal to the value of the sums of a certain key and any other key.

8. In a machine of the class described, the combination of a bank of keys, a differential actuator, a driver therefor, a latch for connecting said actuator to said driver, a member carried by said differential member for moving said latch to disengaging position, a plurality of shoulders on said member singly cooperable with depressed keys, and means controlled by depressed keys for determininp; which shoulder is to function.

9. In a machine of the class described; the combination ot a plurality of keys arranged in a single group; a bar actuated by one of said keys; another bar actuated by any one of the other keys of the group g a differentially movable member; a latch on said member said having two positions of adjustment relative to said member, said latch being controlled by bot-h bars when two keys are depressed, to cooperate with one of said keys to stop the differential member in a position corresponding to the combined amounts represented by the two depressed keys, said latch being also controlled by both bars when any one key of the group is depressed to stop the differential after said differential moves a number of steps equal to the value of the one depressed key.

l0. In a machine of the class described, the combination of a plurality of keys arranged in a single group; means actuated by the lowest key in the group; means actuated by any one of the other keys in the group; a differential member; and a latch on said dii'lerential member, positioned under control of both of said means when the lowest key is depressed in combination with any of the other keys in the group to place the dierential member under control of the depressed key located above the lowest key in the group.

11. In a machine of the class described; the combination of a plurality of keys arranged in a vertical line; means actuated by the lowest key in the vertical line in combination with any other key in the line; a diderential member controlled by any one of said keys; and a latch mounted on the did'erential and positioned under control of said means to stop the dillerential after the same moves a number of divisions equal to the combined values of the two depressed keys.

l2. In a machine of the class described, the combination of a plurality of keys arranged in a. vertical line, slidable devices adapted to be operated upon the combined depression of the lowest key with any one of the other keys, a differential member controlled by any one of said keys, a totalizer actuated by said difterential member, and means adapted, under control of said devices, to cooperate with the higher key of the two depressed keys to cause said differential member to move a number of divisions equal to the combined values of the two depressed keys.

13. In a machine of the class described, the combination of a plurality of keys arranged in a single group, slidable means operated upon the combined depression of two keys in said group, a differential member controlled by said keys, and a latch device mounted on said differential member and adapted to be controlled by said slidable means to cooperate with one of said depressed keys to allow said diii'erential member to move a number of divisions equal to the sum of the values repre sented by the two depressed keys.

lll. In a machine of the class described, the combination ol a totalizer, a plurality of keys arranged in a single group, a slidable member adapted to be operated by the key of lowest value, a second slidable member adapted to be operated by the other keys of said group, a diderential member controlled by all of said keys and adapted to actuate said totalizer, a single stop member carried by said differential member and adapted to engage one oi" said depressed keys to enable said differential member to actuate said totalizer an amount equal to the combined values of said two depressed keys, and adjustable means controlled by said slidable members to determine which key said stop member shall engage.

l5. ln a machine ol the class described; the combination of a plurality of keys arranged ina single group, the key of lowest value being depressible with any other key in said group; a differential member controlled by all of said keys; and means carried by the dillierential member to engage the depressed key of highest value to control the dili`erential member.

i6. ln a machine ot the class described, the combination of a totalizer, a plurality oit keys arranged in a single group, a slidable member adapted to be operated by one of said keys, a second slidable member adapted to be operated by the other keys of said group and independently of said iirst mentioned key, a dillerential member controlled by all or said keys and adapted to actuate said totalizer, a single pivoted stop member carried by said difierential member and adapted to engage one of said depressed keys to enable said dii'l'erential member to actuate` said totalizer an amount equa-l` to the combined values of said two depressed keys.

i7. a machine or the class described, the combination` of a totalizer, a plurality of amount keys arranged in a single group, means. adapted to be operated upon the combined depression oi the key of lowest value with another key in said group, a diilqerential member controlled by all of said keys and adapted to actuate `said totalizer, a single adjustable stop member carried by said diderential member and adapted to be adjusted so as to engage the depressed key of highest value to enable said differential member to actuate said totalizcr an amount equal to the combined values of saidtwo depressed keys, a plurality ci' pivoted devices controlled by said means to control the adjustment of said adjustable stop member.

18.' ln a machine of theclass described, the combination ot-a plurality of keys arranged in a single row, the lowest rey being depressible in combination with any other higher key in said row; a differential member controlled by the depressed higher' key and means intermediate oii said keys and said dilierential member to stop said di'erential member after it has moved a number of divisions equal to the combined values of the two depressed keys.

19. In a machine of the class described; the

combination of depressible amount keys; a slidable bar opera-ble by one of said keys; another slidable bar operable by any one of the other keys; a dierential; a latch carried by the differential having a shoulder; and mechanisni intermediate the bars and the latch for controlling the position of the latch to position one ot the shoulders in eieetive relation with one oi the depressed keys.

20. In a machine of the class described, the combination of depressible amount keys; a slidable member operable by the l key another slidable member operable .by any one of the other keys; a diti'erential member; a latch on the ditt'erential member having tWo shoulders, the distance between the shoulders being equal to one step of movement of the diteiential member; and mechanism adjusted, when the l and one of the higher keys are depressed in combination, to control the latch to shii't one sl'ieulder out ol eiiective relationship with the l a hey and maintain the other shoulder in eiieetive relationship with the depressed lrey of higher value, to cause the differential to move an entra step to add one unit more than the value ot the higher key depressed.

21. rlhe combination or" a differentially set table printing element a printin element having a normal and an adjusted position; and means operable by the differentially settable printing element upon its forward movement to move the second mentioned printing element to its adjusted position, said means adapted to return the second mentioned element to its normal position upon vreverse movement ot the differentially settable element, said means being held in position by the settable printing` element to maintain the second-mentioned printing element in its adj usted position.

The combination ot a di iierentially settable printing,` element; a printing element having a normal and an adjusted position; a pivoted arm connecting` the two printing elements together to move the second mentioned printing element to its adjusted position upon rforward movement of the diii'erentially settable printing element7 and back to its normal position upon reverse movement of the differentially settable printing element; and a cam in said first printing` element to operate said pivoted arm.

In testimony whereof I affix my signature.

CHARLES H. ARNOLD. 

